Author:
Kummer Martin,Schaefer Marcus
Reference28 articles.
1. [1] Davis, M., editor, The Undecidable. Basic Papers on Undecidable Propositions, Unsolvable Problems and Computable Functions, Dover Publications Inc., Mineola, 2004. Corrected reprint of the 1965 original (Raven Press, Hewlett; MR0189996).
2. [2] Dëgtev, A. N., "$tt$"- and $m$"-degrees, Algebra i Logika, vol. 12 (1973), pp. 143--61, 243. English translation in Algebra and Logic, vol. 12 (1973), pp. 78--89.
3. [3] Dëgtev, A. N., "Some results on upper semilattices and $\rm m$"-degrees (Russian), Algebra i Logika, vol. 18 (1979), pp. 664--79, 754. English translation in Algebra and Logic, vol. 18 (1980), pp. 420--30.
4. [4] Dekker, J. C. E., "Infinite series of isols", pp. 77--96 in Proceedings of the Symposium in Pure Mathematics, Vol. V, American Mathematical Society, Providence, 1962.
5. [5] Dekker, J. C. E., and J. Myhill, "Some theorems on classes of recursively enumerable sets", Transactions of the American Mathematical Society, vol. 89 (1958), pp. 25--59.